<template>
  <h1>循环指令</h1>
  <ul v-for="item in 3">
    <li>Hello</li>
    <li>Hello</li>
    <li>Hello</li>
  </ul>
  <hr>
  <ul>
    <li v-for="item in 5">{{item}}</li>
  </ul>
  <ul>
    <li v-for="p in productArr">{{p}}</li>
  </ul>
  <table border="1">
    <tr>
      <th>商品编号</th>
      <th>商品名称</th>
      <th>商品价格</th>
      <th>商品库存</th>
      <th>操作</th>
    </tr>
    <tr v-for="(item,index) in productArr">
      <td>{{index+1}}</td>
      <td>{{item.title}}</td>
      <td>{{item.price}}</td>
      <td>{{item.num}}</td>
      <td><button @click="del(index)">删除</button></td>
    </tr>
  </table>
</template>

<script setup>
import {ref} from "vue";
//定义删除商品的方法
const del = (index)=>{
  if(confirm("确定删除吗?")){
    productArr.value.splice(index,1)
  }
}

//定义响应式数组
const productArr = ref([
  {title: "小米手机", price: 5000, num: 100},
  {title: "华为手机", price: 6000, num: 200},
  {title: "苹果手机", price: 7000, num: 300},
  {title: "三星手机", price: 8000, num: 400},
  {title: "OPPO手机", price: 9000, num: 500}
]);
</script>

<style scoped>

</style>